First the spool when you touch the filament it's a bit more flexible than pla's like faber or colorfabb. Second it's totally matte with no reflexions, and since it's black it looks like a black rubber color. Like a car's tire.

When you flex the filament it doesn't snap, and it take's quite a while before it starts to break and show a bit of 'grey'. It actually didn't snap and I had to cut it to set the spool ready.

Got the good camera out and recorder a bit

There's some imperfections on the fan top holder (this it's for um2 hotend on umo) because I actually forgot to measure the filament. It's a consistent 1.71-1.72 So I just changed the flow to 103 to balance the ratio. So far it's printing amazing, much better than ngen by a mile.

I'm testing 210-220C at 60-70mm/s 0.4 nozzle 60C bed with my windowwasher + one very very short puff of hairspray to clean the bed. So far, fan it's been at 160 (that it's like a 30% of normal fans) and there's no sign of any warping. I'm waiting for layer 193 when the big bridges start. But so far, amazing look/fell. And it's 100% bio, resist 110-120C and it's matte! Can't wait to start doing keychains with this color. Very promising.

Oh also, bioFila PlaTec costs 49,90€ for 600gr. This Extrudr Green-TEC Black costs 56€ for a full kilo. And they have a few more colors. Can't wait to test their white-pearl one. Specially since I know now how matte it's. It will do some nice stuff. Oh also, it has european FDA for food contact.

Oh also. It has one weird think, probably because the temp. The filament can get slightly dragged by the nozzle, like carbon, but it doesn't stick to the nozzle. Problem it's that it has made a few gaps on one side, on the video it can be seen a bit when it does the combing move. I forgot that I had that think on too late.

Well the keychain did print perfect, weird enough I didn't touch any setting or flow.

Also, I cleaned with window washer but without hairspray puff. So the print come lose perfect at 35C but all the corners did show some minor warping so it indeed need's
a) more heat? Probably for larger prints it needs either hairspray or a carbonplate/bluetape
b) hairspray puff, but that generates white areas. It might be interesting to experiment with isopropil + glue + heat, since that's what it's making the white effect. The second print without the hairspray didn't show any discoloring. I'll need to check what chemichals has this hairspray.

Everything else on the print went perfect. The touch it's like rubber. After sanding the exterior to give an old-effect it does look great, specially since I did a very very fast sanding with a flexible sandpaper. So this effect was 2minutes processing. I can get this effect on black pla, but it does need more time.

Bed adhesion is my biggest problem with greentec...I either get too little or too much. With hairspray (the one I have) it comes of easily when cooled down...but it warps in corners/edges, even with brim...although the brim still sticks. It doesn't warp so much usually...but with the glossy finish you can easily spot it. With gluestick warping is pretty much gone...but it sticks like h*ll when cooled down.

I also tend to get warping on long overhangs on top of support so I probably need to adjust temperature and cooling. Right now I have tried with fans sort of equaling UM2+...but also higher fans...since i'm using gudo's centrifugal fanduct.